Janelle Monae performs at the New Orleans Jazz and Heritage Festival in New Orleans, Friday, April 22, 2016. Monae, who had a professional working relationship with Prince, who died yesterday, said onstage she was dedicating her show to him. (Photo by Gerald Herbert/AP Photo)

Leonid, “Kartoris”, 28, wears a stalker costume which identifies the group “Monolith”, as he poses for a portrait in Moscow, Russia, March 26, 2016. A game known as S.T.A.L.K.E.R., named after a popular computer shooter, is fast winning the minds of intellectuals across the former Soviet Union who take on roles of mutants, zombies and warriors on unfinished construction sites. As the 30th anniversary of the nuclear disaster in Chernobyl is marked on April 26, enacting a post-apocalyptic world is a philosophy that warns of the perils of uncontrolled use of nuclear power, the game's enthusiasts claim. (Photo by Maxim Shemetov/Reuters)

Valentin, 26, an actor in a S.T.A.L.K.E.R. quest game, poses for a picture in a mutant costume in Moscow, Russia, April 8, 2016. (Photo by Maxim Shemetov/Reuters)

A devotee (C) smiles as she takes a holy bath at the Balaju Baise Dhara (22 water spouts) during the Baishak Asnan festival in Kathmandu, Nepal, April 22, 2016. (Photo by Navesh Chitrakar/Reuters)

A boy plays with water at the Balaju Baise Dhara (22 water spouts) during the Baishak Asnan festival in Kathmandu, Nepal, April 22, 2016. (Photo by Navesh Chitrakar/Reuters)

A devotee (C) takes a holy bath at the Balaju Baise Dhara (22 water spouts) during the Baishak Asnan festival in Kathmandu, Nepal, April 22, 2016. (Photo by Navesh Chitrakar/Reuters)

A man dressed as the character of Don Quixote holds a flaming stick during a mock funeral for Spanish writer Miguel de Cervantes, author of “Don Quixote” to commemorate the 400th anniversary of his death, in his birthplace of Alcala de Henares, Spain, Friday April 22, 2016. (Photo by Paul White/AP Photo)

Actors take part in a mock funeral procession as part of a commemoration of the 400th anniversary of the death of Spanish writer Miguel de Cervantes, author of “Don Quixote” in Alcala de Henares, outside Madrid, Spain, April 22, 2016. (Photo by Susana Vera/Reuters)

Indigenous people take part in a protest to demand control over water resources in provincial areas, which according to the protesters have become polluted and increasingly scarce, in Guatemala City, Guatemala, April 22, 2016. (Photo by Saul Martinez/Reuters)

A man stands outside the wake of a relative, who was killed during an explosion at Mexican national oil company Pemex's Pajaritos petrochemical complex, in Coatzacoalcos, Veracruz state, Mexico, April 22, 2016. (Photo by Angel Hernandez/Reuters)

A girl is pictured next to a line of clothes hung out to dry outside a tent at the Reales Tamarindos airport which is used as a shelter, after being evacuated from her home in Portoviejo, after an earthquake struck off Ecuador's Pacific coast, April 22, 2016. (Photo by Henry Romero/Reuters)

Residents clean shrimp to sell one week after the devastating earthquake on the outskirts of Pedernales, Ecuador, Saturday, April 23, 2016. The earthquake damage has added to the already heavy economic hardships being felt in this OPEC nation because of a collapse in world oil prices. Before the quake, Ecuador was bracing for a bout of austerity, with the IMF forecasting the economy would shrink 4.5 percent this year. (Photo by Rodrigo Abd/AP Photo)

Gymnastics, Olympics Qualifier, Rio de Janeiro, Brazil on April 22, 2016: Jiahui Liu of China performs on the Rhythmic routine during the women's team competition. (Photo by Pilar Olivares/Reuters)

Visitors take pictures of Changan Automobile's self-driving cars, which are manually driven, as they complete a test drive from Chongqing to Beijing to arrive at Changan Automobile's Beijing headquarters, China, April 16, 2016. (Photo by Kim Kyung-Hoon/Reuters)

Li Zengwen, a development engineer at Changan Automobile, removes his hands from the steering wheel while the car is on self-driving mode during a test drive on a highway in Beijing, China, April 16, 2016. (Photo by Kim Kyung-Hoon/Reuters)

U.S. President Barack Obama watches a selection of songs and excerpts from Hamlet as he tours the Globe Theatre in London to mark the 400th anniversary of William Shakespeare's death April 23, 2016. (Photo by Kevin Lamarque/Reuters)

Taiwanese-US artist Chin Chih Yang poses for a photograph with 30,000 aluminum cans after his performance called “Kill Me or Change” in Taipei, Taiwan, 23 April 2016. “Kill Me or Change!” is a performance piece that aims to raise awareness of the benefits of recycling and, encourage people to recycle to conserve resources. (Photo by Ritchie B. Tongo/EPA)

Artist Chin Chih Yang performs “Kill Me or Change” with 30,000 cans falling and burying the artist underneath a mountain of garbage, at the Museum of Contemporary Art in Taipei, Taiwan April 23, 2016. (Photo by Tyrone Siu/Reuters)

Protesters depicting Statue of Liberty (L) and Europa on the bull take part in a demonstration against Transatlantic Trade and Investment Partnership (TTIP) free trade agreement ahead of U.S. President Barack Obama's visit in Hannover, Germany April 23, 2016. (Photo by Kai Pfaffenbach/Reuters)

A protester makes an obscene gesture in front of the placard on the wall during a demonstration against Transatlantic Trade and Investment Partnership (TTIP) free trade agreement ahead of U.S. President Barack Obama's visit in Hannover, Germany April 23, 2016. (Photo by Kai Pfaffenbach/Reuters)

Protesters wearing masks depicting German Chancellor Angela Merkel and U.S. President Barack Obama as they demonstrate against Transatlantic Trade and Investment Partnership (TTIP) agreement ahead of Obama's visit in Hannover, Germany April 23, 2016. (Photo by Kai Pfaffenbach/Reuters)

Protesters set up an inflatable 'Trojan Horse' as they demonstrate against Transatlantic Trade and Investment Partnership (TTIP) and Comprehensive Economic and Trade Agreement (CETA) trade agreements ahead of U.S. President Barack Obama's visit in Hannover, Germany April 23, 2016. (Photo by Nigel Treblin/Reuters)

Supporters of U.S. Republican presidential candidate Donald Trump arrive to attend a campaign rally at Crosby High School, in Waterbury, Connecticut, U.S., April 23, 2016. (Photo by Eduardo Munoz/Reuters)

Syrian civil defence volunteers evacuate people from a damaged building following a reported airstrike on April 23, 2016 in the rebel-held neighbourhood of Tareeq al-Bab in the northern city of Aleppo. The barrage of air strikes on Aleppo began around 10:00 local time and hit several neighbourhoods, including the heavily-populated Bustan al-Qasr district, an AFP correspondent in the city said. But the deadliest raid was on the Tareeq al-Bab neighbourhood on the eastern edges of the city. (Photo by Ameer Alhalbi/AFP Photo)

Civil defence members rest amid rubble of damaged buildings after an airstrike on the rebel-held Tariq al-Bab neighbourhood of Aleppo, Syria April 23, 2016. (Photo by Abdalrhman Ismail/Reuters)

A group of Syrian rest while on the run in a forest in Macedonia after illegally crossing Greek-Macedonian border near the city of Gevgelija on April 23, 2016. Some 50,000 people, many of them fleeing the war in Syria, have been stranded in Greece since the closure of the migrant route through the Balkans in February. (Photo by Joe Klamar/AFP Photo)

Supporters of the Congress of South African Trade Unions (COSATU) and the South African Communist Party (SACP) lead a march calling for the abolition of labour brokers and the implementation of a national health insurance scheme through Durban, South Africa, April 23, 2016. (Photo by Rogan Ward/Reuters)

French climber Alain Robert, also known as “Spiderman”, is seen through a window as he scales the 162-metre (531 ft) Esentai Tower in Almaty, Kazakhstan, April 23, 2016. (Photo by Shamil Zhumatov/Reuters)

French climber Alain Robert, also known as “Spiderman”, takes pictures with a phone as he scales the 162-metre (531 ft) Esentai Tower in Almaty, Kazakhstan, April 23, 2016. (Photo by Shamil Zhumatov/Reuters)

Lebanese of Armenian descent carry signs and Armenian flags during a protest to commemorate the 101st anniversary of the mass killing of Armenians by Ottoman Turks near the Turkish Embassy in Rabieh, Lebanon April 23, 2016. (Photo by Mohamed Azakir/Reuters)

Robots in the Kuka stand pour a beer into a glass at the Hannover Messe industrial trade fair in Hanover, Germany April 23, 2016. (Photo by Nigel Treblin/Reuters)

German Chancellor Angela Merkel and Turkish Prime Minister Ahmet Davutoglu are welcomed by refugees living in Nizip refugee camp near Gaziantep, Turkey, April 23, 2016. (Photo by Steffen Kugler/Reuters/Bundesregierung)

A man watches a TV news program showing a file footage of North Korean leader Kim Jong Un at the Seoul Train Station in Seoul, South Korea, Saturday, April 23, 2016. North Korea on Saturday fired what appeared to be a ballistic missile from a submarine off its northeast coast, South Korean defense officials said, Pyongyang's latest effort to expand its military might in the face of pressure by its neighbors and Washington. The Korean letters read: “North Korea fires submarine-launched ballistic missile or SLBM”. (Photo by Lee Jin-man/AP Photo)

A member of the Mowhawk Hunters Mardi Gras Indians performs at the New Orleans Jazz and Heritage Festival in New Orleans, Saturday, April 23, 2016. (Photo by Gerald Herbert/AP Photo)

NORML provided a cannabis leaf costumed mascot at the National Cannabis Festival held on the grounds near RFK Stadium on April 23, 2016 in Washington, DC.
The fest featured musicians, vendors and educational exhibits. (Photo by Kate Patterson/The Washington Post)

President Obama's motorcade leaves following a visit at the Globe theatre on the 400th anniversary of William Shakespeare's death at The Globe Theatre on April 23, 2016 in London, England.The President and his wife are currently on a brief visit to the UK where they visited HM Queen Elizabeth II at Windsor Castle and later had dinner with Prince William and his wife Catherine, Duchess of Cambridge at Kensington Palace. Mr Obama has also visited 10 Downing and held a joint press conference with British Prime Minister David Cameron where he stated his case for the UK to remain inside the European Union. (Photo by Matt Cardy/Getty Images)

Police travel in a car as part of security as President Obama's motorcade leaves following a visit at the Globe theatre on the 400th anniversary of William Shakespeare's death at The Globe Theatre on April 23, 2016 in London, England. (Photo by Matt Cardy/Getty Images)

Security guard President Obama's motorcade as it leaves following a visit at the Globe theatre on the 400th anniversary of William Shakespeare's death at The Globe Theatre on April 23, 2016 in London, England. (Photo by Matt Cardy/Getty Images)

The crowd is reflected in the sunglasses of Big Sam, of Big Sam's Funky Nation, as he performs at the New Orleans Jazz and Heritage Festival in New Orleans, Saturday, April 23, 2016. (Photo by Gerald Herbert/AP Photo)

A protester holds a mirror in front of the cordon of the riot police who blocked the street for the Constitutional Court, during the protest dubbed “Colorful Revolution” against Macedonian President Ivanov's decision on wiretapping amnesty, in Skopje, The Former Yogoslav Republic of Macedonia, 23 April 2016. Ivanov on 12 April decided to abolish all judicial cases related to the big wire-tapping scandal that brought the country to early general elections scheduled for 05 June. The crisis started in 2015 when opposition SDSM started to publish illegally recorded wire-tapped phone conversations of the highest Governmental officials claiming they show financial crime and eventual evidences of electoral frauds of the ruling conservative VMRO-DPMNE party of then PM Gruevski. Gruevski denied everything saying “foreign intelligence services” are trying to topple his Government he was administrating from 2006. (Photo by Georgi Licovski/EPA)